Irritrol's FFP-50EM 1/2" Elbow comes from the Super Blue Flex Series. It has a 1/2" male X barb thread. This fitting is used with Super Blue Flex Pipe Series hose. Irritrol has made their name as a brand by selling and marketing exclusively to the professional installer, as a result their products are geared to be dependable and durable. Irrirtrol is now making their products available to you through our website. If you are looking for a product line that will last year in and year out, Irritrol is the brand for you.